Puretch can only be used as an etching resist, because the film is very thin, much thinner then ImagOn Ultra rapid, DK-film or Z*Acyl. The film is laminated on a copper plate and exposed to UV light through a transparent positive image. The film is washed out in a soda sulution, only the exposed and hardened parts remain on the plate. The plate is etched in ferric-chloride, inked and printed. Very fine details are possible. This film cannot be used for Ïntaglio Type", this film is not thick enough to hold a dark black.

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Introduction of PuretchThe film to be used as an etching resist; the method to combine photographic elements and the traditional approach.